Apparently yeah,it's printed on the ticket my friend received after making payment at 7/11.
北Eブロック ２階 １０例 ４番 can't possibly mean anything else right
On a side note, I just registered on YAJ Buyee service,which is pretty annoying because most of the auction for 31st tickets do not accept bank transfer.....guess I'll have to drop by reseller shop in Harajuku